Dynamics of electron holes in an electron–oxygen-ion plasma
Eliasson, Bengt and Shukla, Padma (2004) Dynamics of electron holes in an electron–oxygen-ion plasma. Physical Review Letters, 93 (4). 045001. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.93.045001)
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The dynamics of electron holes (EHs) in an electron–oxygen-ion plasma is studied by means of Vlasov simulations. It is found that EHs are attracted by ion density maxima but repelled by ion density minima. Standing EHs repel ions owing to the positive EH potential, creating an ion density cavity which ejects the EH, which propagates away from the cavity with a constant speed. On the other hand, propagating EHs can be trapped at ion density maxima. The results of our simulations will help in understanding the nonlinear dynamics of EHs in space and laboratory plasmas.
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Item type: Article ID code: 45971 Dates: DateEvent19 July 2004PublishedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 18 Nov 2013 15:46 Last modified: 19 Apr 2024 09:27 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/45971